How many movies have Kumiko Watanabe and Takeshi Kusao acted in together?

They have worked on 4 movies together! Their first movie together was Babel II (1992) while their highest rated movie together was Inuyasha the Movie 4: Fire on the Mystic Island (2004). They have not worked together since Sergeant Keroro The Super Duper Movie 5: Creation! Ultimate Keroro, Wonder Space-Time Island (2010). They are most known for their animation films together.